Specific Person Role-play Fantasy

Has anyone played out a fantasy where their partner was a specific person and not generalized? I have a very in-depth fantasy about the movie version of Captain America in the 40's with him being super shy.

@ dv8: Looks like he's ready to give birth to the next generation of super heroes, LMAO! You crack me up when you pull stuff like this out of the ether!

@KinkyCouple, Yes I have had fantasies about specific people and characters! I have not had a partner that I have acted any of this out with though. I think it would be great fun to role play! And no, I am not sharing those fantasies

I draw a line between a "specific person" and a fictional character because the latter presupposes fiction and roleplay. Fantasies involving specific people can involve a more complicated psychology. For example, I dated a woman with cuckquean tendencies who liked to pretend she was women we knew or even just someone random like a cute waitress we had just noticed.